Yield: 30 servings
Ingredients
- 14 ounces (400 g) walnuts, chopped into small pieces
- 1 pound 8 ounces (680 g) bittersweet chocolate, cut into chunks
- 1 pound (455 g) unsalted butter
- 1 pound 12 ounces (795 g) granulated sugar
- 8 eggs
- 1 teaspoon (5 ml) vanilla extract
- 1 pound (455 g) bread flour
- 1/2 teaspoon (2 g) baking powder
Instructions
- Place the chocolate in a heat-resistant bowl with the butter, and melt together over a water bath. Set aside to cool.
- Whip the sugar, vanilla, and eggs at high speed until light and fluffy. Fold the chocolate into the egg mixture.
- Sift the flour with the baking powder into the mixture and fold into the chocolate, a third of the flour volume at a time. Fold in 12 ounces (340 g) of the walnuts.
- Spread the batter evenly in a half-sheet pan (16 x 12 inches/40 x 30 cm) lined with parchment paper. Sprinkle the remaining 2 ounces (55 g) walnuts over the top.
- Bake at 400°F (205°C) for about 30 minutes or until completely set, but still slightly soft to the touch. Let cool, then slice into serving size pieces.